Heroku has announced that they will no longer offer their free tier after November 28, 2022, which will break the VoIPSuite app for many people. Because of this, the tutorial now uses Render:
https://inteltechniques.com/voip.suite.html
I also modified this guide for the many changes within MongoDB registration and activation. All is now functioning again. The show next Friday will be a full VoIP revisit with many new options.